<!DOCTYPE HTML>
<html class="reftest-wait">
<body style="transform:translateY(50px);">
  <span style="padding:2px; background:yellow">&nbsp;&nbsp;&nbsp;&nbsp;</span>
<script>
console.log(document.body.getBoundingClientRect());
document.body.style.transform = "translateY(30px)";
function doTest() {
  document.body.style.transform = "translateY(10px)";
  document.documentElement.removeAttribute("class");
}
window.addEventListener("MozReftestInvalidate", doTest);
</script>
